Milling-machine.



0.. WIEMER.

MILLING MACHINE.

nPPLICATION men JULY 28. 1914.

1 ,1 4%, Q l 5 Patented June 22, 1915.

THE NORI iIS PETERS Ca, PHOm-LITHQ, WASHINGTON. D. C,

CHRISTIAN WIEMER, 0F CUYAHOGA FALLS, OHIO.

MILLING-MACHINE.

traitors.

Specification of Letters Patent.

Patented June 22, 1915.

Application filed July 28, 1914. Serial No. 853,667.

To all whom it may concern Be it known that T, CHRISTIAN WIEMER, acitizen of the United States of America, residing at Cuyahoga Falls, inthe county of Summit and State of Ohio, have invented certain new anduseful Improvements in l vfilling-Machines, of which the following is aspecification, reference being had therein to the accompanying drawing.

This invention relates to a milling machine and has for its principalobject the production of a device which is adapted to be mounted upon asuitable support and held in position to be efficiently operated formilling the teeth upon different metallic tools preferably such as areused in connection with the stone and granite-cutting business.

Another object of this invention is the production of a milling machinehaving a suitable tool support for allowing the tool to be carried so asto be engaged by the desired mill for forming the teeth thereon as thedevice is in operation.

With these and other objects in view this device consists of certainnovel combinations, constructions, and arrangements of parts as will behereinafter fully described and claimed.

In the accompanying drawing, Figure 1 is a side elevation of the millingmachine mounted upon a support and ready for use. Fig. 2 is a centraltransverse section taken through the milling machine. Fig. 3 is alongitudinal section taken through the milling machine showing the shaftin elevation. Fig. 4C is a section taken on the line 4E-4 of Fig. 1looking in the direction of the arrow. Fig. 5 is a fragmentaryperspective view of the tool supporting block.

Referring to the accompanying drawing by numerals 1 designates the baseof the milling machine having the integral vertical walls 2 and 3 formedat its end portions. The base 1 is also provided with openings 4 throughwhich suitable bolts 5 may be passed for firmly securing the device upona suitable support 6. This support may preferably be an anvil wherebythe device may be used for forming the teeth upon the tool while thesteel is still heated. Theend walls 2 and 3 carry the usual brackets 7held in position by means of the bolts 7' through which passes thereduced necks 8 and 9 extending from the end portions of the shaft 10.The longitudinal movement of the shaft upon the base is limited sincethe shoulder 11 and the threaded portion 12 each abut against the innersurface of the walls 2 and 3. The reduced neck 9 which passes throughthe wall 3 carries a fly-wheel 13 while the neck 8 passing through thewall 2 is adapted to be provided with a gear-wheel 14. If 1t 1snecessary, the wall 2 may also carry an enlarged gear-wheel 15 supportedupon a suitable pin 16 which is adapted to mesh with the gear-wheel 14.Upon the rotation of the gear-wheel 15 by means of the handle 17 thegear-wheel 14L- which may be keyed, shrunk, or otherwise fixed upon theneck 8 will impart rotary motion to the shaft 10. Theshaft 10 may alsobe provided with a belt pulley 18 fixed or keyed thereto adjacent thewall 8 for allowing a belt to be passed there-around whereby motivepower independent of the gears 14 and 15 may be provided. When themotive power is provided and the shaft is rotated by means of the beltpulley 18 the gears 14 and 15 may be removed so as to allow the endportions of the machine to be free from obstruction. A collar 19 may befixed upon the shaft 10 by means of the pin 20 and adjacent this collar19 there is carried by the shaft the sleeves 21 and 22. The sleeves 21and 22 are provided with teeth 23 and 24 upon their outer peripheriesthese teeth being formed so as to provide the teeth 23 with slantingends while the teeth 24: will carry squared ends to provide means formilling a tool giving the teeth the desired bevel. The

sleeve 25 is also carried adjacent the sleeve 22 and is provided withone row of teeth so as to out or mill the tool at one portion only. Theloose collars 26 and 27 are mounted upon the shaft and between thesecollars there is carried the sleeve 28, this sleeve being adapted tocarry the emery 29. Upon the opposite end of the collar 27 the sheave 80bears, and carries a tapered emery 31.

These sleeves and collars are loosely mounted upon the shaft 10 but arefixed in a set position by means of the fixed collar 19 and the look-nut32 which is mounted upon the threaded portion of the shaft 10. This nutengages the sheave 30 whereby all the collars and sleeves will rotate inthe same direction at the same time with the shaft 10.

The base 1 is provided with the lugs 33 extending therefrom which carrythe threaded rod 34. Upon this threaded rod are mounted the adjustmentnuts 35 upon which are mounted the handles 36 and 37.

These handles are held upon the nuts 35 by means of the coiled spring 38which is passed about the threaded rod 34 and bears upon the inner lowerfaces of the handles 36 and 37. The handle 36 is provided with a fixedpin 39 which is slidably mounted through the handle 37. Adjacent the rod34 there is also carried the tool supporting block 40 having notchedportions 421 formed upon its upper edge for allowing a tool to restthereon. It will be seen that a tool may be passed between the handles36 and 37 so as to rest within one of the notches 41 and upon the pin39. The adjacent nuts 35 may then be threaded toward each other upon thethreaded rod 34: thereby binding the tool to be milled between thenotches. The handles may then be swung slightly toward the shaft andsleeves so as to allow the end of the tool to bear upon the teeth 23,24:, or 25'. The teeth 25 are formed upon the collar 25. As the shaft isbeing rapidly rotated by the belt pulley 18 or the gears 14L and 15, theteeth will mill the end of the tool giving the same the desired cuts ormills. As soon as the tool has been milled, the handles may be swungupwardly from the shaft, collars, and sleeves, thereby removing the toolfrom engagement with the sleeves. The adjacent nuts may then be ro tatedso as to allow the tool to be removed from engagement with the handlesat which time the adjacent nuts 35 may be moved along the threaded rod34 so as to allow the next tool to be milled, and engage a differentsleeve and teeth if so desired. It is of course obvious that the toolmay be simply placed upon the emery 29 or 31 for beveling or removingthe roughened portions therefrom.

From the foregoing description it will be seen that a milling machinehas been produced which will efliciently mill the ends of stone-cuttingtools and the like for giving the same their correct cuts or mills whilethe tool holding device may be easily adjusted for supporting differenttools upon different teeth thereby allowing the tools to be milled asdesired.

' What I claim is:

1. A device of the class described comprising a base, a milling shaftcarried by said base, a plurality of lugs extending from said base, athreaded rod carried by said lugs, adjustment nuts carried by said rod,handles pivotally mounted upon said adjustment nuts, a coiled springpositioned upon said threaded rod, and bearing upon the inner portionsof said handles whereby said handles will normally be urged apart, asupporting pin fixedly secured to one of said handles and slidablymounted upon the other handle, said handles being adapted to carry atool there-between at which time said nuts may be rotated for positivelybinding said handles in engage ment with a tool, whereby a tool may beheld in position to engage said milling shaft.

2. A device of the class described comprising a base, a milling shaftcarried by said base, a plurality of lugs extending from said base, athreaded rod carried by said lugs, adjustment nuts carried by said rod,handles pivotally mounted upon said adjustment nuts, a coiled springpositioned upon said threaded rod and bearing upon the inner portions ofsaid handles whereby said handles will normally be urged apart, asupporting pin fixedly secured to one of said handles and slidablymounted upon the other handle, said handles being adapted to carry atool there-between at which time said nuts may be rotated for clampingsaid handles in engagement with a tool, a tool supporting block carriedby said base at a spaced distance from said threaded rod, said blockprovided with a plurality of notches upon its upper edge, whereby a toolcarried by said handles may rest upon said block for lifting aconsiderable amount of the supporting strain from said handles, wherebya tool may be held in engagement with said milling shaft.

3. A device of the class described comprising a base, a milling shaftcarried by said base, a threaded rod carried by said base, adjustmentnuts carried by said rod, handles pivotally mounted upon said nuts, acoiled spring positioned upon said threaded rod and bearing upon theinner portions of said handles whereby said handles will normally beurged apart, and means engaging said handles for holding the same inalinement with each other, said handles being adapted to carry a tooltherebetween at which time said nuts may be rotated for positivelybinding said handles in engagement with a tool, whereby a tool may beheld in position to engage said milling shaft.

4. A device of the class described comprising a base, a milling shaftcarried by said base, a plurality of lugs extending from said base, arod carried by said lugs, handles adjustably mounted upon said rod, asup porting pin fixedly secured to one of said handles and slidablymounted upon the other handle, said handles being adapted to releasablyretain a too], said pin being adapted to hold said handles in alinementwith each other whereby said handles may i hold a tool in engagementwith said shaft.

5. A device of the class described comprising a base, a milling shaftcarried by said base, a plurality of lugs extending from said base, athreaded rod carried by said I lugs, adjustment nuts carried by saidrod, handles pivotally mounted upon said adjustment nuts, a coiledspring positioned upon said threaded rod, and bearing upon the innerportion of said handles whereby said handles will normally be urgedapart, movement of said handles in one direction, a supporting pinfixedly secured to one of thereby preventing said handles from engagsaidhandles and slidably mounted upon the ing said shaft. other handle, saidhandles being adapted to In testimony whereof I hereunto aflix my 5carry a tool therebetween at Which time said signature in presence oftwo Witnesses.

nuts may be rotated for positively binding CHRISTIAN WIEMER said handlesin engagement With a tool, whereby a tool may be held in position toWitnesses: engage said milling shaft, and means oar- EMILY FELMLY, 1Oried by said base for limiting the pivotal DOROTHY FELMLY.

Gopies of this patent may be obtained for five cents-each, by addressingthe Commissioner of Patents, Washington, D. G."

